bone neoplasm Flashcards

1. Describe the most common types of carcinoma that metastasize to the bone 2. Describe the clinicopathologic features of common benign neoplasms (osteochondroma, enchondroma, giant cell tumor) 3. Describe the clinicopathologic features of common malignant neoplasms (osteosarcoma, chondrosarcoma, Ewing sarcoma)

1
Q

most common types of cancer that met to bone

A

breast, lung, thyroid, kidney, prostate (BLT with a Kosher Pickle)

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2
Q

most commin sites of mets to bone

A

proximal femoral head/neck, and veterbral bodies

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3
Q

most common tumor of bone

A

osteochondroma

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4
Q

mushroom/brochollu shaped tumor around the knee in a young man

A

osteochondroma

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5
Q

medularry cavity of tumor contigious with medullary cavity of the bone

A

osteochondroma

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6
Q

blue cartilage cap

A

osteochondroma

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7
Q

benign, painless cartilaginous tumor in middle aged pts

A

endochondroma

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8
Q

radiographic stippling

A

endochrondroma

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9
Q

tumor resembling cartilagle

A

endochrondroma

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10
Q

signs that an endochromdroma is turning malignant

A

new onset of pain
cortical erosion or soft involvement
increased cellularity, evidence of invasive growth, necrosis

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11
Q

benign but locally aggressive bone neoplasm

A

giant cell tumor

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12
Q

long bone tumor in ages 25-40

A

giant cell

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13
Q

arises in the epiphysis w/extension into the metaphysis

A

giant cell

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14
Q

way to distinguish giant cell tumor from malignancy

A

stromal cells should be cytologically bland

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15
Q

most common primary bone malignancy

A

osteosarcoma

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16
Q

bone cancer found in young, or old, but not middle aged

A

osteosarcoma

17
Q

risk factors in older pts for developing osetosarcoma

A

prior radiation, paget’s disease

18
Q

large, clincially agggressive, painful tumor of long bones

A

osetosarcoma

19
Q

periosteal elevation

A

codman’s triangle

20
Q

most common type of osteosarcoma

A

osteoblastic

21
Q

pink lace-like directly associated with malignant osteoblasts

A

osteoblastic

22
Q

predominant spindle cells

A

fibroblastic

23
Q

histological difference between chondrosarcoma and endochondromas

A

chondrosarcoma shows bony trabecular invasion and extraosseous soft tissue extension

24
Q

blue to gray-white classy tumor (malignant)

A

chondrosarcoma

25
Q

bone tumor in kids

A

ewing sarcoma

26
Q

faxtor expressed on ewing’s sarcoma

A

CD99

27
Q

fried egg appearing bone cancer

A

ewing’s

28
Q

translocation in ewings

A

EWS 11;22